Code of Federal Regulations > Title 37 > Chapter I > Part 42 > Subpart B - Subpart B—Inter Partes Review

U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

GENERAL

§ 42.100 - Procedure; pendency.

§ 42.101 - Who may petition for inter partes review.

§ 42.102 - Time for filing.

§ 42.103 - Inter partes review fee.

§ 42.104 - Content of petition.

§ 42.105 - Service of petition.

§ 42.106 - Filing date.

§ 42.107 - Preliminary response to petition.

INSTITUTING INTER PARTES REVIEW

§ 42.108 - Institution of inter partes review.

AFTER INSTITUTION OF INTER PARTES REVIEW

§ 42.120 - Patent owner response.

§ 42.121 - Amendment of the patent.

§ 42.122 - Multiple proceedings and Joinder.

§ 42.123 - Filing of supplemental information.